Tuyển tập các báo cáo nghiên cứu về y học được đăng trên tạp chí y học Radiation Oncology cung cấp cho các bạn kiến thức về ngành y đề tài: " Intensity-modulated radiotherapy of nasopharyngeal carcinoma: a comparative treatment planning study of photons and protons. | Radiation Oncology BioMed Central Open Access Intensity-modulated radiotherapy of nasopharyngeal carcinoma a comparative treatment planning study of photons and protons ZahraTaheri-Kadkhoda 1 Thomas Bjork-Eriksson1 Simeon Nill2 Jan J Wilkens2 Uwe Oelfke2 Karl-Axel Johansson3 Peter E Huber4 and Marc W Munter4 Address 1Goteborg University and Department of Oncology Sahlgrenska University Hospital Goteborg Sweden 2Department of Medical Physics in Radiation Oncology German Cancer Research Center DKFZ Heidelberg Germany 3Department of Radiophysics Sahlgrenska University Hospital Goteborg Sweden and 4Clinical Cooperation Unit Radiation Oncology German Cancer Research Center DKFZ Heidelberg Germany Email Zahra Taheri-Kadkhoda - Thomas Bjork-Eriksson - Simeon Nill - Jan J Wilkens - Uwe Oelfke - Karl-Axel Johansson - Peter E Huber - Marc W Munter - Corresponding author Published 24 January 2008 Received 25 August 2007 Radiation Oncology 2008 3 4 doi 1748-717X-3-4 Accepted 24 January 2008 This article is available from http content 3 1 4 2008 Taheri-Kadkhoda et al licensee BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License http licenses by which permits unrestricted use distribution and reproduction in any medium provided the original work is properly cited. Abstract Background The aim of this treatment planning study was to investigate the potential advantages of intensity-modulated IM proton therapy IMPT compared with IM photon therapy IMRT in nasopharyngeal carcinoma NPC . Methods Eight NPC patients were chosen. The dose prescriptions in cobalt Gray equivalent GyE for gross tumor volumes of the primary tumor GTV-T
